Chromosomal abnormalities are generally untreatable because the condition is mainly caused by congenital genetic reasons. Any genetic abnormality or low immunity in both parents may lead to chromosomal abnormality in the offspring, resulting in abnormal growth and development of the fetus. At present, there is no special treatment that can achieve a cure, but the risk of chromosomal abnormalities can be reduced through marriage examination, pre-pregnancy examination and prenatal diagnosis. It is recommended that couples who are planning to get pregnant should have a comprehensive physical examination to make sure that all the indicators are up to standard before getting pregnant. If one of the parties has chromosomal abnormalities, genetic counseling is required, and if necessary, three-generation IVF is used to screen embryos to achieve the goal of eugenics.